Journal-bearing.



H. HESS. JOURNAL BEARING.

APPLICATION FILED AUG. 14, 1909.

Patented Ma 5, 1914.

INVENTOR Q Allore WITNESSEs C /r. W

'nnrrnn s'ra'rns PATENT OFFICE.

HENRY HESS, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE HESS-BRIGHT MANUFACTURING COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORA- TION 0E DELAWARE.

JOURNAL- ummer.

Patented May 5, 1914:.

Application filed August 14, 1909. Serial No. ?12,865.

To all whom z'tmay concern: Be it known that I, HENRY Hnss, a citizen of the United States, and a resident of Philadelphia, in the county of Philadelphia .or damping the anti-friction'bearing. In

carrying out my invention in one form, I support the rotating member, such as a shaft, upon a ball bearing ofthe well-known annular type. Although in a properly constructed bearing of this type the clearance between the balls and the races is less than the running clearance of a plain bearing, yet the point or line contact between the rolling members and the races has so little area that the oil film does not act as a cushion, but allowsjherolling members to cut through it and so permit-s very slight vibration. In certain cases, for instance in grinding machinery,

shows on the work. I have found that the introduction of an oil film which will not be cut through will eliminate the undesirable features just mentioned. A convenient means of maintaining this additional oil film between the shaft ano its support consists in providing a bushing which has a suitable running fit upon the shaft and in the mounting. The lubricant finding its way into the spaces between the bushing and the shaft and the bushing and the mounting atlr rds an effective cushion which prevents vibration or oscillation of the shaft and prolects the bearing and produces other desirable operative conditions without adding to the frictional resistance between the shaft and its mounting to any appreciable extent.

The acconmanying drawing shows an exemplifying structure embodying the invention. The view is a longitudinal section.

efcrencc character 1 designates the rotary shaft and 2. its stationary mounting having a cylindrical bore The shaft may as well be the stationary' member and the casing 2 the revoluble member. The shaft this slight vibration i will manifest itself as a chatter that= is supported in the casing by the ball bearmg 4 which may be of the ordinary annular type. -This bearing carries substantially all of the load. On the shaft and Within the casing is the loose ring or bushing 5 which has a runningfit with relation to the cylindrical bore of the casing and the jour- 11:11 6 formed on the shaft. This running fit is indicated by the-clearances 7 and 8, shown in the drawing in an exaggerated way in order thatthey may readily perceived. The spaces between the bushing5 and-the shaft, and between t e bushing and the housing 2 become fille wit oil when the device is in use and this oil film serves to cushion the shaft inthemanner which has been described.

Suit-able means for maintaining the oil film such as my invention provides may be employed in connection with antifriction bearings having cylindrical or other forms of rollers.

It is to be understood'that the device chosen to illustrate the invention is only representative and that the principles involved may be embodied in many forms.

I claim:

1. The combination of a rotary member, a

stationary support, an anti-friction bearing intermediate the member and the support, and a bushing intermediate the member and the support and having a running fit in rela tion to said parts whereby an oil film is maintained between the bushing and the shaft and between the bushing and the housing.

2. The COl'lll'llll'dtlOll of a shaft and a housing having relatively rotary motion, the housing having a cylindrical bore and the shaft having a cylindrical journal, an annular ball bearing intermediate the shaft and the housing, a bushing having a run ning fit upon the journal and the housing. and an oil film in the spaces between the shaft and the bushing and between the bushipg and the housing.

HEN-RY HESS.

-Witnesses l. D. NlO'CALLA, JOHN S. C EMENT. 

